19770447

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{919}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 27025920

約数和(自身を除く): 7255473

約数列:

[1, 3, 71, 101, 213, 303, 919, 2757, 7171, 21513, 65249, 92819, 195747, 278457, 6590149, 19770447]

約数ペア:

[(1, 19770447), (3, 6590149), (71, 278457), (101, 195747), (213, 92819), (303, 65249), (919, 21513), (2757, 7171)]